Excel VBA – How to Redim a 2D array?

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This isn’t exactly intuitive, but you cannot Redim(VB6 Ref) an array if you dimmed it with dimensions. Exact quote from linked page is:

The ReDim statement is used to size or resize a dynamic array that has
already been formally declared using a Private, Public, or Dim
statement with empty parentheses (without dimension subscripts).

In other words, instead of dim invoices(10,0)

You should use 

Dim invoices()
Redim invoices(10,0)

Then when you ReDim, you’ll need to use Redim Preserve (10,row)

Warning: When Redimensioning multi-dimensional arrays, if you want to preserve your values, you can only increase the last dimension. I.E. Redim Preserve (11,row) or even (11,0) would fail.

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